Dancy will play a doctor who treats women suffering from an acute case of so-called "hysteria," an affliction of the time marked by "irritability, anger, or unexplained tears." To cure them, he partners up with his best friend (Rupert Everett) to create the device (though some doctors had their own methods of relieving the symptoms). Gyllenhaal costars as the daughter of one of Dancy's colleagues (Jonathan Pryce) and presumably Dancy's love interest. The actress has never been sheepish about tackling a little sexual taboo (hello, Secretary), but with a couple of Brits by her side, this movie sounds like cheeky good fun.